Removable window sash and a springchannel combination therefor



Jan. 27, 1959 O G. w. LOVE EIAL 2,870,494

REMOVABLE WINDOW SASH AND A SPRING-CHANNEL COMBINATION THEREFOR Filed April 28, 1954 zzvmvrons IlE-Z: S

-eralditferent types or sub-assembliesof springs to hold the sash .separate and unsecured behind the guide United States Patent REMOVABLE WINDOW "SASH AND A'SPRING- "CHANNEL COMBINATION THEREFOR Gordon W. Love,-.Birmingham, and Charles A. ,Pelizzari, Royal Oak, Mich.

-'Application April 28, 1954, Serial'No."426 ,"130

.1 #Claim. (.Cl. 2052.2)

'Ihis invention relates to removable Window sash for building structures, and 'in particular, "to -a new, novel,

and inventive sash channel-and spring combination which 'provides'for inherent even spring pressure at all .points of the sash guide channelintermediate the ends thereof, which, when integrated'in a frame withthe sash, provides for resiliently pressing 'against'thesashto hold the The-"utilityan'd economy of removable sash in window frames in building structures is well established as these devices save the user and installer much valuable time and render his work easier so that he can work more hours per day and by the fact that neither'the installer nor the user after installation is obligated to work on the outside 'of the building as the sash can be inserted and --removed from the inside of the building, thereby eliminat ing the use of ladders on the outside ofthe building and "eliminating the hazard of projecting a persons body outwardly of the building to work on the sashes.

The instant integral guide rail and spring combination renders the product more adaptable to mass production art devices have enjoyed a certain amount of satisfaction and success, they leave much to be desired relative to simplicity of construction, the integration of prefabrication sub-assemblies, and the interchangeability of parts. The instant device obviates the necessity of evand guide rails relative to each other and relative to the frame. Also in the prior artdevices it has been found that when the springs and guide rails are made of two distinct parts with onejuxtaposed relative to the other with a spring or springs located in several portions along the guide rail, spots or localities in the guide rail have immediate spring pressure and other spots in the guide "rail that are remote from spring pressure. In

these prior art devices some areas of the guide rail have too much pressure behind them and other areas of the ,guide rail that donot have'enough pressure behind them inadjusted position.

It is also pertinent to note that when springs are rail, they are subject to slippage and movement longitudinally of the guide rail and are capable of completely falling out of association with the guide rail and the frame resulting in an inoperable objectionable structure.

With the foregoing in view, the primary object of the sash in adjusted longitudinal positionand also provides -means formoving the sash sidewise thereagainst in the frame so as to remove the opposite end of the sash from the solid channel at the opposite end of the frame.

invention is to provide a guide rail for a removable sash and frame combination havingthe spring'pressed guide rails thereof so integrated that the spring and'the guide rail are integral and manufactured out of 'the'same piece of material.

An'object of the invention is to provide-aspring pressed guide rail having an 'attaching screw socket so that the guide rail can move on the spring portion thereof rela- -tive to the sash without'the screw -head protruding; above the face "portion of the guide rail thereby eliminating screw 'head 'inter'ference with'the sash.

An objectof'theinvention is to provide .a guide .rail having two integral "leaf'like springs leading :from the guide rail side-walls adapted to-contact'thejamb.

An'object of-theinvention is'to provide a slot inthe leaf'spring portions of the guide rail for by passingi'the attaching screws.

An object 'of th-e invention is .to provide a guide rail and spring means integrated "out 'ofthe same material so thatthere'is no possible chance ofthesprings Idislocating themselves ,out 'of position ,relativeto .the guide rail.

An object 'of'theinventionis to provide a guide rail and spring so integrated that the spring pressure is.constantfrom one end'of the guiderail to theother.

An object ofthe invention is to provide a pleated'or accordion type spring longitudinally co-extensive with the guide rail so that thespring pressure from end-to-end I of the guide'rail is equal at all points.

An objectof'the inventionvis to provide a guide rail and a-spring fabricatedfromthe same piece of material with the-sprin-g'portion co-extensive with 'the end of the guide rail and adapted to contact the jamb portion of the frame at all timesso'as to act, as a weather strip means to prevent the passage of air betweenthe guide rail and frame orjamb.

An object of the inventionis to provide a morelfo olproof, simple,'ine xpensive and yet more efiicieut spring pressed guide rail withthe guide rail and spring united and preferably fabricated from the same piece of material.

These and other objects of the invention will become apparent by reference to the following description of the integral guide rail and spring 'combinationfor use in conjunction withremovable sash which are spring tensioned and held in adjustable longitudinal position, taken in connection with the accompanying drawing, in which:

Fig.1 is a horizontal cross-sectional view of a frame and sash employing the inventive guide rails and spring combinations;

Fig. 2 is a fragmentary view similar .to Fig. 1 showingthe spring pressedguide rail depressed fullysowas to 'permitremoval of the sash from the opposite fixed guide rail;

Fig. 3 is a plan view of the inventive guide rails of Figs. 1 and 2 from thetrear thereof showing the slots formed therein for bypassing the attaching screws; and

Fig. 4 is a viewsimilar to Figs. 1 and 2 showing a rnodifiedform of accordion pleated spring inherently integrated with the guide rail and formed from the same piece of material.

Referringnow to the drawing,.wherein like numerals refer tolike and corresponding parts throughout :the several views, the window-frame and removablesash-Iogether with the spring and guide rail combinations,disclosed therein to illustrate the invention comprises a side Ill and a spring pressed guide rail side 11 wherein the guide rail receiving chamber B on the fixed side 10 of the frame is relatively more shallow than the chamber A on the spring pressed guide rail side 11 of the frame.

3 The fixed guide rail frame side is composed of an outside blind stop 12, an outside filler strip 14, a jamb 16, an inside filler strip 18, an inside blind stop, not shown, and an inside parting stop 22, and a frame block 24. It is to be understood that the frame block 24 can be eliminated and the jamb 16 moved closer to the various stops so that the jamb 16 abuts the bottom of the stationary guide rails 26 which are disposed in side-byside abutting relationship and in abutting relationship to the outside filler strip 14 and inside parting stop 22.

Referring now to the spring pressed guide rail side 11 of the frame, it is to be noted that the parts forming the chamber A comprise an outside blind stop 13, an outside filler strip 15 sidewise abutting the blind stop 13, a jamb 17 edgewise abutting the outside filler strip 15, an inside filler strip 19 sidewise abutting the jamb 17, an inside blind stop 21 covering the edges of the filler strip 19 and jamb 17, and an inside parting stop 23 overlying the edge of the blind stop 21 and the side of the filler strip 19.

The spring pressed guide rails 25 are disposed in sideby-side abutting relationship in the chamber A and in sidewise abutting relationship to the outside filler strip 15 in the inside parting stop 23. The upper sash 27 is disposed between the paired outside guide rails 25 and 26 and the lower sash 28 is disposed between the paired inside guide rails 25 and 26.

As seen in Fig. 1, the sash, frame and guide rails are shown in their normal use position with the spring portions of the spring pressed guide rails partially compressed with the edges of the guide rails resting even with the outside filler strip 15 and the inside parting stop 23, and it is to be noted that the screw heads are partially elevated from their socket bottoms and that the spring portions are capable of further compressing movement so that the guide rails can be depressed to remove the tongues 30 and 32 out of the stationary guide rails 26 to remove the sash from the frame.

Referring particularly now to the spring pressed guide rails themselves, it is to be noted that the rails and springs are preferably formed from the same piece of material and comprise a depressed center face portion 50 having the attaching cups 51 inserted therein at spaced intervals such as at the top and the bottom of the guide rail to hold same in proper position and to prevent the falling out of the guide rail upon the removal of the sash. The guide rails 25 are also equipped with shoulder portions 52 and 53 for abutting the sash on either side of the tongues 31 and 33 so that the sash rides on the shoulders 52 and 53 as well as on the center face por tion 50. Side portions 54 and 55 lead from the shoulders 52 and 53, respectively, and the spring lever or leaf portions 56 and 57, respectively, integrally lead from the sides 54 and 55 and are adapted to contact the jamb 17. the guide rail are equipped with slots 58 and 59 respectively, for by-passing the attaching screws 60 when compressed into the positions seen in Figs. 1 and 2.

The guide rails 25 are preferably roll formed from strip material and are continuous in conformation throughout their longitudinal extent so that the guide rails and springs are co-extensive thereby providing uniform spring pressure throughout the length of the guide rail.

Referring now to Fig. 4, wherein a modified guide rail is illustrated, it will be noted that the face portion 50A, shoulder portions 52A, and 53A and side portions 54A and 55A are substantially identical to the guide rail portions of Figs. 1 to 3, however, it will be noted that the spring portion of the guide rails 70 and 71 are It is to be noted that the leaf spring portions of integrated and formed in a reversely folding or accordion pleat so as to provide a stronger spring pressure in every area of the guide rail and this form of the invention is particularly suitable for wide sash which require more spring pressure behind the guide rails due to their additional weight.

In both forms of the inventive spring pressed guide rail having the rail portion and spring portion made integral and preferably formed from the same piece of material, it is to be noted that the spring pressure is equal at every point in the guide rail and that the spring portion contacts the jamb equidistant with the rail in forced contact and abutment so that air attempting to move behind the guide rails is prevented by the weatherstrip action of the spring portion contacting the jamb.

Due to the fact that the springs and guide rails are formed as one piece, it is impossible for a workman to mislocate the spring longitudinally of the guide rail, and it is also impossible for him to forget to put the springs or the proper amount of springs in the proper places behind the guide rail during integration. It is also impossible for the user to misalign the springs, or for the window to deteriorate with age whereby the springs will be allowed to slip out of position.

In fabricating the device it is only necessary to insert the stationary guide rails 26 on one side of the frame and the spring pressed guide rails 25 on the other side of the frame without thought to spring integration and positioning, and in use, there is no possible chance of the springs becoming misaligned due to vibration or to eterioration of the structures.

In operation, to insert the sash it is only necessary to insert the sash tongue 31 against the face portion 50 of the spring pressed guide rail and press the sash so as to compress the spring sufficiently to allow the sash tongue 30 or 32 to by-pass the shoulder portion of the stationary guide rails 26. The tongues 30 and 32 are then allowed to fit into the stationary guide rails 26 and the sash is completely integrated in the frame. To remove the sash, it is only necessary to exert sidewise pressure on the sash against the spring pressed guide rails 25 so as to remove the tongues 30 or 32 out of the stationary guide rails.

Although but two embodiments of the invention have been shown and described in detail, it is obvious that many changes may be made in the size, detail, shape, and arrangements of the elements of the invention within the scope of the appended claim.

We claim:

An integral spring and spring pressed guide rail for a removable window sash comprising an elongated member having face portions contacting the edge of a window sash in channeling and sliding relationship, integral side portions leading from said face portions contacting and sliding against locating and guiding frame members, pleated accordion-type spring portions leading from said side portions contacting and pressing against a frame jamb so as to render said guide rail resilient relative to a jamb and guiding frame elements.

References Cited in the file of this patent UNITED STATES PATENTS 2,264,020 Dautrick et al Nov. 25, 1941 2,545,902 Sugar Mar. 20, 1951 2,667,671 Cook et a1. Feb. 2, 1954 2,668,990 Holmes et a1. Feb. 16, 1954 2,677,156 Holmes May 4, 1954 2,747,219 Haas May 29, 1956 2,774,997 Zitorner Dec. 25, 1956 

